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Stevet781 Oct 19, 2010 8:02 AM

40D ISO problem
Hello, I have a 40D that won't allow me to set an ISO lower than 200 in any mode apart from portrait. I have reset the camera to default and dowloaded/installed the latest Firmware 1.1.1 but still won't allow lower than 200. The next stop down is auto. I know it should be possible as I've used 160/100 before. Anyone out there experienced similar and was able to resolve?

Any advice much appreciated as canon are telling me that if the firmware update doesn't work then it's a repair/service job aaaggghhhh :mad:

VTphotog Oct 19, 2010 2:22 PM

Would the ISO #s lower than 200 be part of the extended ISO menu setting, along with the ISO 3200? Just a guess, as I don't know anything about the camera.


Stevet781 Oct 21, 2010 3:28 AM

40D ISO Problem
Realise it's not good to reply to one's own post but for people who also have this problem it's the Highlight tone priority in C.FnII: Image that was set to Enable. Disable and the problem solved.


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